U.S. patent number 11,026,228 [Application Number 16/504,233] was granted by the patent office on 2021-06-01 for slot type indication method and apparatus, and slot type determining method and apparatus.
This patent grant is currently assigned to HUAWEI TECHNOLOGIES CO., LTD.. The grantee listed for this patent is HUAWEI TECHNOLOGIES CO., LTD. Invention is credited to Bingyu Qu, Hao Sun, Lixia Xue.
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United States Patent |
11,026,228 |
Sun , et al. |
June 1, 2021 |
Slot type indication method and apparatus, and slot type
determining method and apparatus
Abstract
A slot type indication method and an apparatus and a slot type
determining method and an apparatus are provided. Under the slot
type indication method, a first indication information can be
generated by a network device. The first indication information
indicates a slot type of a first slot. When the slot type of the
first slot is a predefined type, the first indication information
further indicates whether a second slot is an uplink-only slot, and
the first slot is a slot that includes a downlink control channel.
The first indication information can be sent, by the network
device, by using the downlink control channel of the first
slot.
Inventors: |
Sun; Hao (Beijing,
CN), Qu; Bingyu (Beijing, CN), Xue;
Lixia (Beijing, CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
HUAWEI TECHNOLOGIES CO., LTD |
Shenzhen |
N/A |
CN |
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Assignee: |
HUAWEI TECHNOLOGIES CO., LTD.
(Shenzhen, CN)
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Family
ID: |
1000005592720 |
Appl.
No.: |
16/504,233 |
Filed: |
July 6, 2019 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20190335458 A1 |
Oct 31, 2019 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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PCT/CN2017/119053 |
Dec 27, 2017 |
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Foreign Application Priority Data
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Jan 6, 2017 [CN] |
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201710011444.9 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W
72/042 (20130101); H04W 72/0453 (20130101); H04B
7/2656 (20130101); H04L 5/0053 (20130101); H04W
72/0446 (20130101) |
Current International
Class: |
H04W
72/04 (20090101); H04L 5/00 (20060101); H04B
7/26 (20060101) |
References Cited
[Referenced By]
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104348602 |
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Feb 2015 |
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CN |
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105099631 |
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Nov 2015 |
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CN |
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3580979 |
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Feb 2020 |
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EP |
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Mar 2016 |
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WO |
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WO-2018126401 |
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Jul 2018 |
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WO |
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WO |
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WO |
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WQ-2019051096 |
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Mar 2019 |
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WO |
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WO-2019125780 |
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Jun 2019 |
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WO |
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Other References
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2016, 3GPP TSG RAN WG1 Meeting #86bis, Tdoc: R1-1608964 (Year:
2016). cited by examiner .
Nokia et al., On the subframe and slot structures in NR, Oct. 10,
2016, 3GPP TSG RAN WG1 Meeting #86bis, Tdoc: R1-1609662 (Year:
2016). cited by examiner .
Panasonic, Timing relation dependency to slots transmission
direction indication method, Oct. 10, 2016, 3GPP TSG RAN WG1
Meeting #86bis, Tdoc: R1-1609706 (Year: 2016). cited by examiner
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Qualcomm Incorporated, Summary of [86-19] Discussion on Slot
Structure Use Cases, , Oct. 10, 2016, 3GPP TSG RAN WG1 Meeting
#86bis, Tdoc: R1-1610128 (Year: 2016). cited by examiner .
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Structure Use Cases, , Oct. 10, 2016, 3GPP TSG RAN WG1 Meeting
#86bis, Tdoc: R1-1610129 (Year: 2016). cited by examiner .
Huawei et al., Scheduling scheme for slot aggregation, Nov. 14,
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cited by examiner .
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Tdoc: R1-1612261 (Year: 2016). cited by examiner .
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#87, Tdoc: R1-1612438 (Year: 2016). cited by examiner .
MediaTek Inc., "Discussion on slot structure and channel
format",3GPP TSG RAN WG1 Meeting #86bis R1-1609555,Lisbon,
Portugal, Oct. 10-14, 2016,total 6 pages. cited by applicant .
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Meeting #87 R1-1612120,Reno, USA, Nov. 14-18, 2016,total 4 pages.
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pages. cited by applicant.
|
Primary Examiner: Nowlin; Eric
Attorney, Agent or Firm: Kilpatrick Townsend & Stockton
LLP
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of International Application No.
PCT/CN2017/119053, filed on Dec. 27, 2017, which claims priority to
Chinese Patent Application No. 201710011444.9, filed on Jan. 6,
2017. The disclosures of the aforementioned applications are hereby
incorporated by reference in their entireties.
Claims
What is claimed is:
1. A slot type indication method, comprising: generating, by a
network device, first indication information, wherein the first
indication information indicates a slot type of a first slot,
wherein when the slot type of the first slot is a predefined type,
the first indication information indicates whether a second slot is
an uplink-only slot, and the first slot is a slot that comprises a
downlink control channel; and sending, by the network device, the
first indication information by using the downlink control channel
of the first slot and, wherein the first indication information
comprises a first group of preset values and a second group of
preset values, and when the first indication information is the
first group of preset values, the slot type of the first slot is
the predefined type, wherein a first preset value in the first
group of preset values indicates that the second slot is the
uplink-only slot, and a second preset value in the first group of
preset values indicates that the second slot is not the uplink-only
slot.
2. The method according to claim 1, wherein the second slot is a
first slot whose type is dynamically configured after the first
slot.
3. The method according to claim 1, wherein the predefined type is
an uplink-dominant slot or a downlink-dominant slot.
4. The method according to claim 1, wherein the predefined type is
semi-statically configured by using higher layer signaling.
5. The method according to claim 1, wherein the first group of
preset values and the second group of preset values multiplex a bit
in the first indication information.
6. The method according to claim 1, wherein a time-frequency
resource that is on the downlink control channel and that is used
to send the first indication information is predefined or
semi-statically configured.
7. The method according to claim 1, wherein a spacing between
subcarriers that are on the downlink control channel and that are
used to send the first indication information is predefined or
semi-statically configured.
8. A slot type determining method, comprising: receiving, by a
terminal device, first indication information by using a downlink
control channel of a first slot; and determining, by the terminal
device, a slot type of the first slot based on the first indication
information, wherein when the slot type of the first slot is a
predefined type, the first indication information further indicates
whether a second slot is an uplink-only slot; and, wherein the
first indication information comprises a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, wherein a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
9. The method according to claim 8, wherein the second slot is a
first slot whose type is dynamically configured after the first
slot.
10. The method according to claim 8, wherein the predefined type is
an uplink-dominant slot or a downlink-dominant slot.
11. The method according to claim 8, wherein the predefined type is
semi-statically configured by using higher layer signaling.
12. The method according to claim 8, wherein the first group of
preset values and the second group of preset values multiplex a bit
in the first indication information.
13. The method according to claim 8, wherein a time-frequency
resource that is on the downlink control channel and that is used
to send the first indication information is predefined or
semi-statically configured.
14. The method according to claim 8, wherein a spacing between
subcarriers that are on the downlink control channel and that are
used to send the first indication information is predefined or
semi-statically configured.
15. A slot type indication apparatus, comprising: a processor
configured to generate first indication information, wherein the
first indication information indicates a slot type of a first slot,
when the slot type of the first slot is a predefined type, the
first indication information further indicates whether a second
slot is an uplink-only slot, and the first slot is a slot that
comprises a downlink control channel; and a transceiver configured
to send the first indication information by using the downlink
control channel of the first slot; and, wherein the first
indication information comprises a first group of preset values and
a second group of preset values, and when the first indication
information is the first group of preset values, the slot type of
the first slot is the predefined type, wherein a first preset value
in the first group of preset values indicates that the second slot
is the uplink-only slot, and a second preset value in the first
group of preset values indicates that the second slot is not the
uplink-only slot.
16. The apparatus according to claim 15, wherein the second slot is
a first slot whose type is dynamically configured after the first
slot.
17. The apparatus according to claim 15, wherein the predefined
type is an uplink-dominant slot or a downlink-dominant slot.
18. The apparatus according to claim 15, wherein the predefined
type is semi-statically configured by using higher layer signaling.
Description
TECHNICAL FIELD
This application relates to the field of communications
technologies, and in particular, to a slot type indication method
and an apparatus and a slot type determining method and an
apparatus.
BACKGROUND
In a future 5th generation mobile communications system (The 5th
Generation, 5G), there are four possible slot (slot) types: an
uplink-dominant (Uplink-dominant, UL-dominant) slot, an uplink-only
(UL-only) slot, a downlink-dominant (DL-dominant) slot, and a
downlink-only (DL-only) slot. The UL-dominant slot, the DL-dominant
slot, and the DL-only slot each include a downlink control channel,
and only the UL-only slot does not include the downlink control
channel.
A dynamic time division duplex (Time Division Duplexing, TDD)
mechanism is introduced in the 5G system. In this mechanism, an
uplink-downlink subframe configuration of the system dynamically
changes at a granularity of a slot. A base station needs to
dynamically notify a terminal of a slot type on each slot. In an
existing solution, for a slot, if a slot type is a slot type other
than a UL-only type, the base station may notify the terminal of
the slot type by using a downlink control channel included in the
slot. However, for a slot of the UL-only type, because the slot
does not include the downlink control channel, the base station
cannot notify a current slot type in the slot of the UL-only type.
Therefore, how the base station notifies the terminal of a slot
type of the UL-only slot is a current and urgent problem that needs
to be resolved.
SUMMARY
Embodiments of this application provide a slot type indication
method and an apparatus and a slot type determining method and an
apparatus, to indicate, to a terminal, whether a slot is an
uplink-only slot, thereby improving flexibility of a dynamic TDD
mechanism.
According to a first aspect, a slot type indication method is
provided, including:
generating, by a network device, first indication information,
where the first indication information indicates a slot type of a
first slot, when the slot type of the first slot is a predefined
type, the first indication information is further used to indicate
whether a second slot is an uplink-only slot, and the first slot is
a slot that includes a downlink control channel; and
sending, by the network device, the first indication information by
using the downlink control channel of the first slot.
According to the method provided in this embodiment of this
application, when the slot type of the first slot is the predefined
type, the first indication information sent by the network device
indicates the slot type of the first slot, and further indicates
whether the second slot is the uplink-only slot, to indicate
whether the second slot is the uplink-only slot, thereby improving
flexibility of a dynamic TDD mechanism.
Optionally, the second slot is a first slot whose type is
dynamically configured after the first slot.
Optionally, the predefined type is an uplink-dominant slot or a
downlink-dominant slot.
Optionally, the predefined type is semi-statically configured by
using higher layer signaling.
Optionally, that the first indication information indicates the
slot type of the first slot, and when the slot type of the first
slot is the predefined type, the first indication information is
further used to indicate whether the second slot is the uplink-only
slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
Optionally, the first group of preset values and the second group
of preset values multiplex a bit in the first indication
information.
Optionally, a time-frequency resource that is on the downlink
control channel and that is used to send the first indication
information is predefined or semi-statically configured.
Optionally, a spacing between subcarriers that are on the downlink
control channel and that are used to send the first indication
information is predefined or semi-statically configured.
According to a second aspect, a slot type indication apparatus is
provided, including:
a processing unit, configured to generate first indication
information, where the first indication information indicates a
slot type of a first slot, when the slot type of the first slot is
a predefined type, the first indication information is further used
to indicate whether a second slot is an uplink-only slot, and the
first slot is a slot that includes a downlink control channel;
and
a transceiver unit, configured to send the first indication
information by using the downlink control channel of the first
slot.
Optionally, the second slot is a first slot whose type is
dynamically configured after the first slot.
Optionally, the predefined type is an uplink-dominant slot or a
downlink-dominant slot.
Optionally, the predefined type is semi-statically configured by
using higher layer signaling.
Optionally, that the first indication information indicates the
slot type of the first slot, and when the slot type of the first
slot is the predefined type, the first indication information is
further used to indicate whether the second slot is the uplink-only
slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
Optionally, the first group of preset values and the second group
of preset values multiplex a bit in the first indication
information.
Optionally, a time-frequency resource that is on the downlink
control channel and that is used to send the first indication
information is predefined or semi-statically configured.
Optionally, a spacing between subcarriers that are on the downlink
control channel and that are used to send the first indication
information is predefined or semi-statically configured.
According to a third aspect, a slot type indication apparatus is
provided, including:
a processor, configured to generate first indication information,
where the first indication information indicates a slot type of a
first slot, when the slot type of the first slot is a predefined
type, the first indication information is further used to indicate
whether a second slot is an uplink-only slot, and the first slot is
a slot that includes a downlink control channel; and
a transceiver, configured to send the first indication information
by using the downlink control channel of the first slot.
Optionally, the second slot is a first slot whose type is
dynamically configured after the first slot.
Optionally, the predefined type is an uplink-dominant slot or a
downlink-dominant slot.
Optionally, the predefined type is semi-statically configured by
using higher layer signaling.
Optionally, that the first indication information indicates the
slot type of the first slot, and when the slot type of the first
slot is the predefined type, the first indication information is
further used to indicate whether the second slot is the uplink-only
slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
Optionally, the first group of preset values and the second group
of preset values multiplex a bit in the first indication
information.
Optionally, a time-frequency resource that is on the downlink
control channel and that is used to send the first indication
information is predefined or semi-statically configured.
Optionally, a spacing between subcarriers that are on the downlink
control channel and that are used to send the first indication
information is predefined or semi-statically configured.
According to a fourth aspect, a slot type determining method is
provided, including:
receiving, by a terminal device, first indication information by
using a downlink control channel of a first slot, where the first
slot is a slot that includes the downlink control channel; and
determining, by the terminal device, a slot type of the first slot
based on the first indication information, where when the slot type
of the first slot is a predefined type, the first indication
information is further used to indicate whether a second slot is an
uplink-only slot.
According to the method provided in this embodiment of this
application, when the slot type of the first slot is the predefined
type, the first indication information received by the terminal
device indicates the slot type of the first slot, and further
indicates whether the second slot is the uplink-only slot, so that
the terminal device can determine, based on the first indication
information, whether the second slot is the uplink-only slot,
thereby improving flexibility of a dynamic TDD mechanism.
Optionally, the second slot is a first slot whose type is
dynamically configured after the first slot.
Optionally, the predefined type is an uplink-dominant slot or a
downlink-dominant slot.
Optionally, the predefined type is semi-statically configured by
using higher layer signaling.
Optionally, that the first indication information indicates the
slot type of the first slot, and when the slot type of the first
slot is the predefined type, the first indication information is
further used to indicate whether the second slot is the uplink-only
slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
Optionally, the first group of preset values and the second group
of preset values multiplex a bit in the first indication
information.
Optionally, a time-frequency resource that is on the downlink
control channel and that is used to send the first indication
information is predefined or semi-statically configured.
Optionally, a spacing between subcarriers that are on the downlink
control channel and that are used to send the first indication
information is predefined or semi-statically configured.
According to a fifth aspect, a slot type determining apparatus is
provided, including:
a transceiver unit, configured to receive first indication
information by using a downlink control channel of a first slot,
where the first slot is a slot that includes the downlink control
channel; and
a processing unit, configured to determine a slot type of the first
slot based on the first indication information, where when the slot
type of the first slot is a predefined type, the first indication
information is further used to indicate whether a second slot is an
uplink-only slot.
Optionally, the second slot is a first slot whose type is
dynamically configured after the first slot.
Optionally, the predefined type is an uplink-dominant slot or a
downlink-dominant slot.
Optionally, the predefined type is semi-statically configured by
using higher layer signaling.
Optionally, that the first indication information indicates the
slot type of the first slot, and when the slot type of the first
slot is the predefined type, the first indication information is
further used to indicate whether the second slot is the uplink-only
slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
Optionally, the first group of preset values and the second group
of preset values multiplex a bit in the first indication
information.
Optionally, a time-frequency resource that is on the downlink
control channel and that is used to send the first indication
information is predefined or semi-statically configured.
Optionally, a spacing between subcarriers that are on the downlink
control channel and that are used to send the first indication
information is predefined or semi-statically configured.
According to a sixth aspect, a slot type determining apparatus is
provided, including:
a transceiver, configured to receive first indication information
by using a downlink control channel of a first slot, where the
first slot is a slot that includes the downlink control channel;
and
a processor, configured to determine a slot type of the first slot
based on the first indication information, where when the slot type
of the first slot is a predefined type, the first indication
information is further used to indicate whether a second slot is an
uplink-only slot.
Optionally, the second slot is a first slot whose type is
dynamically configured after the first slot.
Optionally, the predefined type is an uplink-dominant slot or a
downlink-dominant slot.
Optionally, the predefined type is semi-statically configured by
using higher layer signaling.
Optionally, that the first indication information indicates the
slot type of the first slot, and when the slot type of the first
slot is the predefined type, the first indication information is
further used to indicate whether the second slot is the uplink-only
slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
Optionally, the first group of preset values and the second group
of preset values multiplex a bit in the first indication
information.
Optionally, a time-frequency resource that is on the downlink
control channel and that is used to send the first indication
information is predefined or semi-statically configured.
Optionally, a spacing between subcarriers that are on the downlink
control channel and that are used to send the first indication
information is predefined or semi-statically configured.
According to a seventh aspect, a computer readable storage medium
is provided, where the computer readable storage medium stores an
instruction, and when the instruction runs on a computer, the
computer performs the methods in the foregoing aspects.
According to an eighth aspect, a computer program product that
includes an instruction is provided, where when the computer
program product runs on a computer, the computer performs the
methods in the foregoing aspects.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a schematic structural diagram of a slot according to an
embodiment of this application;
FIG. 2 is a schematic flowchart of a slot type indication method
according to an embodiment of this application;
FIG. 3 is a schematic flowchart of a slot type indication method
according to an embodiment of this application;
FIG. 4 is a schematic structural diagram of a slot according to an
embodiment of this application;
FIG. 5 is a schematic structural diagram of a slot according to an
embodiment of this application;
FIG. 6 is a schematic structural diagram of a slot type indication
apparatus according to an embodiment of this application;
FIG. 7 is a schematic structural diagram of a network device
according to an embodiment of this application;
FIG. 8 is a schematic structural diagram of a slot type determining
apparatus according to an embodiment of this application; and
FIG. 9 is a schematic structural diagram of a terminal device
according to an embodiment of this application.
DESCRIPTION OF EMBODIMENTS
Various embodiments are applicable to a 4G (4th generation mobile
communications system) evolved system, for example, an LTE (Long
Term Evolution, long term evolution) system or a 5G (5th generation
mobile communications system) system, for example, a communications
system such as an access network that uses a new radio access
technology (new radio access technology, New RAT), and a CRAN
(Cloud Radio Access Network, cloud radio access network).
In the following, some terms in this application are described to
help a person skilled in the art have a better understanding.
(1). A terminal device is also referred to as user equipment (User
Equipment, UE), and is a device that provides a user with voice
and/or data connectivity, for example, a handheld device or an
in-vehicle device that has a wireless connection function. Common
terminals include, for example, a mobile phone, a tablet computer,
a notebook computer, a palmtop computer, a mobile Internet device
(mobile internet device, MID), and a wearable device such as a
smartwatch, a smart band, or a pedometer.
(2). A network device may be a radio access network (Radio Access
Network, RAN) device, and is a device that connects a terminal to a
wireless network, including but is not limited to a gNB (gNodeB),
an evolved NodeB (evolved Node B, eNB), a radio network controller
(radio network controller, RNC), a NodeB (Node B, NB), a base
station controller (Base Station Controller, BSC), a base
transceiver station (Base Transceiver Station, BTS), a home NodeB
(for example, Home evolved NodeB or Home Node B, HNB), and a
baseband unit (BaseBand Unit, BBU). In addition, the device may
include a Wi-Fi access point (Access Point, AP) or the like.
(3). "A plurality of" indicates two or more than two. The term
"and/or" describes an association relationship for describing
associated objects and represents that three relationships may
exist. For example, A and/or B may represent the following three
cases: Only A exists, both A and B exist, and only B exists. The
character "/" generally indicates an "or" relationship between the
associated objects. In addition, it should be understood that
although the terms "first", "second", "third", and the like may be
used in the embodiments of this application to describe various
messages, requests, and terminals, these messages, requests, and
terminals are not limited to these terms. These terms are only used
to differentiate between the messages, requests, and terminals.
(4). A symbol includes but is not limited to an orthogonal
frequency division multiplexing (Orthogonal Frequency Division
Multiplexing, OFDM) symbol, a sparse code multiple access (Sparse
Code Multiplexing Access, SCMA) symbol, a filtered orthogonal
frequency division multiplexing (Filtered Orthogonal Frequency
Division Multiplexing, F-OFDM) symbol, and a non-orthogonal
multiple access (Non-Orthogonal Multiple Access, NOMA) symbol. The
symbol may be specifically determined based on an actual situation.
Details are not described herein.
(5). In terms of a subframe, one subframe occupies a time-frequency
resource of entire system bandwidth in frequency domain, and is a
time-frequency resource element of fixed duration in time domain.
The subframe may include K symbols. A value of K may be determined
based on an actual situation, and is not limited herein. For
example, in LTE, one subframe occupies 14 consecutive symbols in
time domain; or in a 5G system, when a subcarrier width is 30
kHz/60 kHz, one subframe occupies 28/56 consecutive symbols in time
domain.
(6). In terms of a slot (slot), the slot is a basic time-frequency
resource element that occupies several consecutive symbols in time
domain. A quantity of symbols included in the slot is less than a
quantity of symbols included in a subframe.
Currently, in the 5G being discussed, a UL-dominant slot includes a
downlink control channel, downlink-uplink switching, an uplink data
channel, and an uplink control channel; a DL-dominant slot includes
a downlink control channel, a downlink data channel,
downlink-uplink switching, and an uplink control channel; a UL-only
slot includes an uplink data channel and an uplink control channel;
and a DL-only slot includes a downlink control channel and a
downlink data channel. For details, refer to FIG. 1. In the
embodiments of this application, the uplink control channel may be
used to transmit information such as uplink control information or
a sounding reference signal (Sounding Reference Signal, SRS) with
short duration (short duration).
With reference to the foregoing description, FIG. 2 is a schematic
flowchart of a slot type indication method according to one
embodiment.
Step 201: A network device generates first indication information,
where the first indication information indicates a slot type of a
first slot, when the slot type of the first slot is a predefined
type, the first indication information is further used to indicate
whether a second slot is an uplink-only slot, and the first slot is
a slot that includes a downlink control channel.
Step 202: The network device sends the first indication information
by using the downlink control channel of the first slot.
Step 203: A terminal device receives the first indication
information by using the downlink control channel of the first
slot, where the first slot is the slot that includes the downlink
control channel.
Step 204: The terminal device determines the slot type of the first
slot based on the first indication information.
In step 201, the slot type of the first slot may be any one of a
UL-dominant slot, a DL-dominant slot, and a DL-only slot. This is
specifically determined based on an actual situation.
In this embodiment, the predefined type may be an uplink-dominant
slot or a downlink-dominant slot.
In some embodiments, the network device and the terminal device may
agree on the predefined type in advance, or the network device may
semi-statically configure the predefined type by using higher layer
signaling, and the terminal device may determine the predefined
type by using the received higher layer signaling.
The higher layer signaling may be a master information block
(Master Information Block, MIB), a system information block (System
Information Block, SIB), radio resource control (Radio Resource
Control, RRC) signaling, or other higher layer signaling that has a
similar characteristic.
In this embodiment, the second slot may be a first slot whose type
is dynamically configured after the first slot. In other words, the
second slot may be a slot that is located after and adjacent to the
first slot, or the second slot is a slot that is located after but
not adjacent to the first slot.
It should be noted that the "dynamic configuration" described
herein means that the network device can dynamically configure the
slot type based on an actual situation. In other words, the network
device can configure the slot by using duration of one slot as a
granularity.
It should be noted that the uplink-only slot may be a slot that
includes only an uplink channel, for example, the UL-only slot.
In this embodiment, the first indication information may be a first
group of preset values or a second group of preset values. The
first group of preset values includes a first preset value and a
second preset value.
When the first indication information is the first group of preset
values, the first indication information indicates that the slot
type of the first slot is the predefined type. Further, when the
first indication information is the first preset value in the first
group of preset values, the first indication information indicates
that the second slot is the uplink-only slot; or when the first
indication information is the second preset value in the first
group of preset values, the first indication information indicates
that the second slot is not the uplink-only slot.
When the first indication information is the second group of preset
values, the first indication information indicates the slot type of
the first slot.
Further, the second group of preset values may include a third
preset value and a fourth preset value. When the first indication
information is the third preset value in the second group of preset
values, the first indication information indicates that the first
slot is a downlink-only slot; or when the first indication
information is the fourth preset value in the second group of
preset values, the first indication information indicates that the
first slot is the downlink-dominant slot.
In some embodiments, the first group of preset values and the
second group of preset values may multiplex a bit in the first
indication information.
For example, the first indication information includes two bits. If
the predefined type is the uplink-dominant slot, the first group of
preset values includes 10 and 11, and the second group of preset
values includes 00 and 01, content indicated by the first
indication information may be shown in Table 1.
TABLE-US-00001 TABLE 1 Slot type of a first slot, First indication
information and slot type of a second slot 00 Downlink-only slot 01
Downlink-dominant slot 10 Uplink-dominant slot, not uplink-only
slot 11 Uplink-dominant slot, uplink-only slot
With reference to Table 1, when the first indication information is
00, the first indication information indicates that the slot type
of the first slot is the downlink-only slot; or when the first
indication information is 01, the first indication information
indicates that the slot type of the first slot is the
downlink-dominant slot. When the first indication information is
10, the first indication information indicates that the slot type
of the first slot is the predefined type (namely, the
uplink-dominant slot) and the slot type of the second slot is not
the uplink-only slot. When the first indication information is 11,
the first indication information indicates that the slot type of
the first slot is the predefined type and the slot type of the
second slot is the uplink-only slot.
Certainly, the foregoing is merely an example, the first indication
information may alternatively be in another form, and details are
not described herein.
In step 202, the network device may send, by using the downlink
control channel of the first slot, broadcast signaling that
includes the first indication information, to send the first
indication information.
After the terminal receives the first indication information in
step 203, in step 204, the terminal device may determine the slot
type of the first slot and the slot type of the second slot or
determine the slot type of the first slot, based on the first
indication information.
When determining, based on the first indication information, that
the slot type of the second slot is not the uplink-only slot, the
terminal device may further need to listen to broadcast signaling
on the second slot, to determine the type of the second slot. When
determining, based on the first indication information, that the
slot type of the second slot is the uplink-only slot, the terminal
device may not need to listen to broadcast signaling on the second
slot.
It should be noted that, in this embodiment, a time-frequency
resource that is on the downlink control channel and that is used
to send the first indication information may be predefined or
semi-statically configured. A spacing between subcarriers that are
on the downlink control channel and that are used to send the first
indication information may also be predefined or semi-statically
configured. A specific method for performing pre-definition or
semi-static configuration may be implemented based on an actual
situation. Details are not described herein.
With reference to the foregoing description, FIG. 3 is a schematic
flowchart of a slot type indication method according to an
embodiment of this application.
Referring to FIG. 3, the method includes the following steps.
Step 301: A network device generates second indication information,
where the second indication information indicates whether a slot
type of each of M slots after a third slot is an uplink-only slot,
the third slot is a slot that includes a downlink control channel,
and M is a positive integer greater than 0.
The uplink-only slot may be a slot that includes only an uplink
channel, for example, a UL-only slot.
Step 302: The network device sends the second indication
information by using the downlink control channel of the third
slot.
Step 303: A terminal device receives, on the downlink control
channel of the third slot, the second indication information sent
by the network device, where the second indication information
indicates whether the slot type of each of the M slots after the
third slot is the uplink-only slot, the third slot is the slot that
includes the downlink control channel, and M is a positive integer
greater than 0.
Step 304: The terminal device determines, based on the second
indication information, whether the slot type of each of the M
slots is the uplink-only slot.
In step 301, the M slots may be M consecutive slots that are
dynamically changed. For example, as shown in FIG. 4, M slots are
consecutive in time domain, and are all slots that can be
dynamically changed. It should be noted that the "dynamically
changed slot" described herein means that the network device can
dynamically configure a slot type based on an actual situation.
Certainly, the M slots may alternatively be M inconsecutive slots
that are dynamically changed. To be specific, at least one slot
that is configured to be of a specified type is located between two
slots in the M slots. For example, M is equal to 8. As shown in
FIG. 5, a slot #1 to a slot #8 are dynamically changed slots after
the third slot, a slot #9 and a slot #10 are slots configured to be
of a specified type, the slot #9 is located between a slot #4 and a
slot #5, and the slot #10 is located between a slot #6 and a slot
#7. As a result, the slot #1 to the slot #8 are inconsecutive in
time domain.
It should be noted that the M slots after the third slot do not
include the third slot, and the third slot may be adjacent to a
first slot in the M slots, or may be spaced by at least one slot
from a first slot in the M slots. When the third slot and the first
slot in the M slots are spaced by at least one slot, the network
device and the terminal device may agree on a quantity of spaced
slots in advance, or the network device may indicate a quantity of
spaced slots to the terminal device by using higher layer
signaling.
In this embodiment, the second indication information may include M
bits, and each of the M bits uniquely indicates whether a type of
one slot in the M slots is the uplink-only slot.
In some embodiments, for an N.sup.th bit in the M bits, if a value
of the N.sup.th bit is a first preset value, a slot type
corresponding to the N.sup.th bit is the uplink-only slot; or if a
value of the N.sup.th bit is a second preset value, a slot type
corresponding to the N.sup.th bit is not the uplink-only slot,
where N is a positive integer greater than 0, and N is less than or
equal to M.
For example, M is 4, the first preset value is 1, and the second
preset value is 0.
When the second indication information is 1010, it indicates that a
type of the first slot and a type of a third slot in the M slots
are uplink-only slots, and a type of a second slot and a type of a
fourth slot in the M slots are not the uplink-only slot.
Certainly, the foregoing is merely an example, and M may
alternatively be another value. This is not limited herein. It
should be noted that, in this embodiment of this application, the
network device and the terminal device may agree on the value of M
in advance, or the network device may send M to the terminal device
by using higher layer signaling.
In this embodiment, the higher layer signaling may be a master
information block (Master Information Block, MIB), a system
information block (System Information Block, SIB), radio resource
control (Radio Resource Control, RRC) signaling, or other higher
layer signaling that has a similar characteristic.
In some embodiments, the second indication information may
alternatively include Q bits, and there is a mapping relationship
between a value of the Q bits and a location of the uplink-only
slot in the M slots, where Q is greater than 0 and is less than or
equal to M. For example, M is 4, and Q is 2. The mapping
relationship between the value of the Q bits and the location of
the uplink-only slot in the M slots may be shown in Table 2.
TABLE-US-00002 TABLE 2 Value of Q bits Location of an uplink-only
slot in M slots 00 First slot 01 First slot and second slot 10
Second slot and third slot 11 Third slot and fourth slot
When determining that the received second indication information is
00, the terminal device may determine that the first slot in the M
slots after the third slot is the uplink-only slot. Another case
may be deduced by analogy. Details are not described herein.
Certainly, the foregoing description is merely an example, and the
second indication information may alternatively be in other forms,
which are not illustrated herein one by one.
In step 302, when sending the second indication information by
using the downlink control channel of the third slot, the network
device may further send third indication information by using the
downlink control channel. The third indication information
indicates a slot type of the third slot.
In some embodiments, the slot type of the third slot may be any one
of a UL-dominant slot, a DL-dominant slot, and a DL-only slot.
Further, in this embodiment of this application, the network device
may further send fourth indication information. The fourth
indication information indicates one or more of the following
configurations in a target period:
a quantity of symbols occupied by an uplink control channel in one
slot in all slots in the target period; and
a quantity of symbols occupied by a downlink control channel in one
slot in all the slots in the target period.
It should be noted that, in the target period, all the slots may
not include the uplink control channel or the downlink control
channel. When the fourth indication information indicates both the
quantity of symbols occupied by the uplink control channel and the
quantity of symbols occupied by the downlink control channel, the
fourth indication information indicates a quantity of symbols
occupied by each control channel in a slot that includes the uplink
control channel and the downlink control channel, a quantity of
symbols occupied by the uplink control channel in a slot that
includes only the uplink control channel, or a quantity of symbols
occupied by the downlink control channel in a slot that includes
only the downlink control channel.
When the fourth indication information indicates only the quantity
of symbols occupied by the uplink control channel, a quantity of
symbols occupied by the downlink control channel in the slot that
includes the uplink control channel and the downlink control
channel may be a preset value. Correspondingly, when the fourth
indication information indicates only the quantity of symbols
occupied by the downlink control channel, a quantity of symbols
occupied by the uplink control channel in the slot that includes
the uplink control channel and the downlink control channel may be
a preset value.
It should be noted that there may be a plurality of values for the
quantity that is of symbols occupied by the uplink control channel
in one slot and that is indicated by the fourth indication
information, and correspondingly, there may be a plurality of
values for the quantity that is of symbols occupied by the downlink
control channel in one slot and that is indicated by the fourth
indication information.
For example, the fourth indication information indicates that a
quantity of symbols occupied by the uplink control channel and a
quantity of symbols occupied by the downlink control channel in all
the slots in the target period may be the following
combinations.
The uplink control channel occupies one symbol, and the downlink
control channel occupies one symbol;
the uplink control channel occupies one symbol, and the downlink
control channel occupies two symbols;
the uplink control channel occupies two symbols, and the downlink
control channel occupies one symbol; and
the uplink control channel occupies two symbols, and the downlink
control channel occupies two symbols.
The method is applicable to a scenario in which the quantity of
symbols occupied by the uplink control channel is different in
different slots in the target period, and/or a scenario in which
the quantity of symbols occupied by the downlink control channel is
different in different slots in the target period.
In this embodiment, the second indication information may be
implemented in a plurality of manners. In a first possible
implementation, the fourth indication information is broadcast
system information, and in this implementation, the target period
is a sending period of the broadcast system information.
In another implementation, the fourth indication information is
common control information sent by using a common search space
resource, and in this implementation, the target period is
semi-statically configured or predefined by the network device.
In still another implementation, the fourth indication information
is broadcast data information that is scheduled by broadcast
scheduling signaling and that is sent by using a common search
space resource, and in this implementation, the target period is
semi-statically configured or predefined by the network device.
Certainly, the foregoing is merely an example, the fourth
indication information may alternatively be implemented in another
manner, and details are not described herein.
In step 304, after receiving the second indication information, the
terminal device may determine, based on the second indication
information, whether the slot type of each of the M slots is the
uplink-only slot.
In some embodiments, for an N.sup.th slot in the M slots, if the
terminal device determines that a type of the N.sup.th slot is the
uplink-only slot, the terminal device may not listen to broadcast
signaling on the N.sup.th slot to determine the type of the
N.sup.th slot.
For the N.sup.th slot in the M slots, if the terminal device
determines that the type of the N.sup.th slot is not the
uplink-only slot, the terminal device may determine the slot type
of the N.sup.th slot by using fifth indication information carried
on a downlink control channel of the N.sup.th slot. The fifth
indication information indicates the slot type of the N.sup.th
slot. The slot type of the N.sup.th slot may be any one of the
UL-dominant slot, the DL-dominant slot, and the DL-only slot. This
is specifically determined based on an actual situation.
With reference to the foregoing description, the downlink control
channel may further include the third indication information. In
this case, the terminal device may further determine the slot type
of the third slot based on the third indication information.
Further, the terminal device may receive the fourth indication
information sent by the network device. For content indicated by
the fourth indication information, refer to the description in step
302. Details are not described herein again.
In some embodiments, after receiving the fourth indication
information sent by the network device, the terminal device may
further determine, based on the third indication information and
the fourth indication information, a quantity of symbols occupied
by an uplink control channel in the third slot and a quantity of
symbols occupied by the downlink control channel in the third
slot.
For example, each slot includes a total of k symbols. A quantity of
symbols occupied by downlink-uplink switching may be i, where i is
predefined, or is dynamically indicated by physical layer
signaling, or is semi-statically configured by using higher layer
signaling. The fourth indication information indicates that the
quantity of symbols occupied by the uplink control channel and the
quantity of symbols occupied by the downlink control channel in all
the slots in the target period are the following combinations.
The uplink control channel occupies one symbol, and the downlink
control channel occupies one symbol;
the uplink control channel occupies one symbol, and the downlink
control channel occupies two symbols;
the uplink control channel occupies two symbols, and the downlink
control channel occupies one symbol; and
the uplink control channel occupies two symbols, and the downlink
control channel occupies two symbols.
In this case, when determining that the slot type of the third slot
is the DL-only slot and the downlink control channel of the third
slot occupies one symbol, the terminal device may determine that
the downlink control channel occupies one symbol and that a
downlink data channel occupies k-1 symbols.
When determining that the slot type of the third slot is the
DL-only slot and the downlink control channel of the third slot
occupies two symbols, the terminal device determines that the
downlink control channel occupies two symbols and that a downlink
data channel occupies k-2 symbols.
When determining that the slot type of the third slot is the
UL-dominant slot, the uplink control channel of the third slot
occupies one symbol, and the downlink control channel occupies one
symbol, the terminal device determines that the uplink control
channel of the third slot occupies one symbol, that the downlink
control channel of the third slot occupies one symbol, that
downlink-uplink switching occupies i symbols, and that an uplink
data channel occupies k-2-i symbols.
When determining that the slot type of the third slot is the
UL-dominant slot, the uplink control channel of the third slot
occupies one symbol, and the downlink control channel occupies two
symbols, the terminal device determines that the uplink control
channel occupies one symbol, that the downlink control channel
occupies two symbols, that downlink-uplink switching occupies i
symbols, and that an uplink data channel occupies k-3-i
symbols.
When determining that the slot type of the third slot is the
UL-dominant slot, the uplink control channel of the third slot
occupies two symbols, and the downlink control channel occupies one
symbol, the terminal device determines that the uplink control
channel occupies two symbols, that the downlink control channel
occupies one symbol, that downlink-uplink switching occupies i
symbols, and that an uplink data channel occupies k-3-i
symbols.
When determining that the slot type of the third slot is the
UL-dominant slot, the uplink control channel of the third slot
occupies two symbols, and the downlink control channel occupies two
symbols, the terminal device determines that the uplink control
channel occupies two symbols, that the downlink control channel
occupies one symbol, that downlink-uplink switching occupies i
symbols, and that an uplink data channel occupies k-4-i
symbols.
When determining that the slot type of the third slot is the
DL-dominant slot, the uplink control channel of the third slot
occupies one symbol, and the downlink control channel occupies one
symbol, the terminal device determines that the uplink control
channel occupies one symbol, that the downlink control channel
occupies one symbol, that downlink-uplink switching occupies i
symbols, and that a downlink data channel occupies k-2-i
symbols.
When determining that the slot type of the third slot is the
DL-dominant slot, the uplink control channel of the third slot
occupies one symbol, and the downlink control channel occupies two
symbols, the terminal device determines that the uplink control
channel occupies one symbol, that the downlink control channel
occupies two symbols, that downlink-uplink switching occupies i
symbols, and that a downlink data channel occupies k-3-i
symbols.
When determining that the slot type of the third slot is the
DL-dominant slot, the uplink control channel of the third slot
occupies two symbols, and the downlink control channel occupies one
symbol, the terminal device determines that the uplink control
channel occupies two symbols, that the downlink control channel
occupies one symbol, that downlink-uplink switching occupies i
symbols, and that a downlink data channel occupies k-3-i
symbols.
When determining that the slot type of the third slot is the
DL-dominant slot, the uplink control channel of the third slot
occupies two symbols, and the downlink control channel occupies two
symbols, the terminal device determines that the uplink control
channel occupies two symbols, that the downlink control channel
occupies two symbols, that downlink-uplink switching occupies i
symbols, and that a downlink data channel occupies k-4-i
symbols.
In some embodiments, after receiving the fourth indication
information sent by the network device, the terminal device may
further determine, based on the second indication information and
the fourth indication information, a quantity of symbols occupied
by an uplink control channel of an uplink-only slot in the target
period.
When the UL-only slot includes k symbols and the uplink control
channel occupies one symbol, the uplink control channel occupies
one symbol, and an uplink data channel occupies k-1 symbols.
When the UL-only slot includes k symbols and the uplink control
channel occupies two symbols, the uplink control channel occupies
two symbols, and an uplink data channel occupies k-2 symbols.
Based on a same technical concept, an embodiment of this
application further provides a slot type indication apparatus. The
apparatus can execute the foregoing method embodiments.
FIG. 6 is a schematic structural diagram of a slot type indication
apparatus 600 according to an embodiment of this application.
Optionally, the apparatus 600 may be a network device.
Referring to FIG. 6, the apparatus 600 includes:
a processing unit 601, configured to generate first indication
information, where the first indication information indicates a
slot type of a first slot, when the slot type of the first slot is
a predefined type, the first indication information is further used
to indicate whether a second slot is an uplink-only slot, and the
first slot is a slot that includes a downlink control channel;
and
a transceiver unit 602, configured to send the first indication
information by using the downlink control channel of the first
slot.
In some embodiments, the second slot is a first slot whose type is
dynamically configured after the first slot.
The second slot may be a slot adjacent to the first slot, or the
second slot is a slot not adjacent to the first slot. For details,
refer to the description in step 201. Details are not described
herein again.
In some embodiments, the predefined type is an uplink-dominant slot
or a downlink-dominant slot.
In some embodiments, the predefined type is semi-statically
configured by using higher layer signaling.
The higher layer signaling may be a master information block, a
system information block, radio resource control signaling, or
other higher layer signaling that has a similar characteristic. For
details, refer to the description in step 201. Details are not
described herein again.
In some embodiments, that the first indication information
indicates the slot type of the first slot, and when the slot type
of the first slot is the predefined type, the first indication
information is further used to indicate whether the second slot is
the uplink-only slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
For an implementation of the first indication information, refer to
the description in step 201. Details are not described herein
again.
In some embodiments, the first group of preset values and the
second group of preset values multiplex a bit in the first
indication information.
In some embodiments, a time-frequency resource that is on the
downlink control channel and that is used to send the first
indication information is predefined or semi-statically
configured.
In some embodiments, a spacing between subcarriers that are on the
downlink control channel and that are used to send the first
indication information is predefined or semi-statically
configured.
It should be understood that division of the foregoing units is
merely logical function division. In actual implementation, all or
some of the units may be integrated into a physical entity, or may
be physically separate. In this embodiment of this application, the
transceiver unit 602 may be implemented by a transceiver, and the
processing unit 601 may be implemented by a processor. As shown in
FIG. 7, a network device 700 may include a processor 701, a
transceiver 702, and a memory 703. The memory 703 may be configured
to store a program/code that is preinstalled before the network
device 700 is delivered from a factory, may store code executed by
the processor 701, or the like.
Based on a same technical concept, an embodiment of this
application further provides a slot type indication apparatus. The
apparatus can execute the foregoing method embodiments.
FIG. 8 is a schematic structural diagram of a slot type determining
apparatus 800 according to an embodiment of this application.
Optionally, the apparatus 800 may be a terminal device.
Referring to FIG. 8, the apparatus 800 includes:
a transceiver unit 801, configured to receive first indication
information by using a downlink control channel of a first slot,
where the first slot is a slot that includes the downlink control
channel; and
a processing unit 802, configured to determine a slot type of the
first slot based on the first indication information, where when
the slot type of the first slot is a predefined type, the first
indication information is further used to indicate whether a second
slot is an uplink-only slot.
In some embodiments, the second slot is a first slot whose type is
dynamically configured after the first slot.
The second slot may be a slot adjacent to the first slot, or the
second slot is a slot not adjacent to the first slot. For details,
refer to the description in step 201. Details are not described
herein again.
In some embodiments, the predefined type is an uplink-dominant slot
or a downlink-dominant slot.
In some embodiments, the predefined type is semi-statically
configured by using higher layer signaling.
In some embodiments, that the first indication information
indicates the slot type of the first slot, and when the slot type
of the first slot is the predefined type, the first indication
information is further used to indicate whether the second slot is
the uplink-only slot specifically includes:
the first indication information includes a first group of preset
values and a second group of preset values, and when the first
indication information is the first group of preset values, the
slot type of the first slot is the predefined type, where a first
preset value in the first group of preset values indicates that the
second slot is the uplink-only slot, and a second preset value in
the first group of preset values indicates that the second slot is
not the uplink-only slot.
For an implementation of the first indication information, refer to
the description in step 201. Details are not described herein
again.
In some embodiments, the first group of preset values and the
second group of preset values multiplex a bit in the first
indication information.
In some embodiments, a time-frequency resource that is on the
downlink control channel and that is used to send the first
indication information is predefined or semi-statically
configured.
In some embodiments, a spacing between subcarriers that are on the
downlink control channel and that are used to send the first
indication information is predefined or semi-statically
configured.
It should be understood that division of the foregoing units is
merely logical function division. In actual implementation, all or
some of the units may be integrated into a physical entity, or may
be physically separate. In this embodiment of this application, the
transceiver unit 801 may be implemented by a transceiver, and the
processing unit 802 may be implemented by a processor. As shown in
FIG. 9, a terminal device 900 may include a processor 901, a
transceiver 902, and a memory 903. The memory 903 may be configured
to store a program/code that is preinstalled before the terminal
device 900 is delivered from a factory, may store code executed by
the processor 901, or the like.
In various embodiments, the transceiver may be a wired transceiver,
a wireless transceiver, or a combination thereof. The wired
transceiver may be, for example, an Ethernet interface. The
Ethernet interface may be an optical interface, an electrical
interface, or a combination thereof. For example, the wireless
transceiver may be a wireless local area network transceiver, a
cellular network transceiver, or a combination thereof. The
processor may be a central processing unit (English: central
processing unit, CPU for short), a network processor (English:
network processor, NP for short), or a combination of a CPU and an
NP. The processor may further include a hardware chip. The hardware
chip may be an application-specific integrated circuit (English:
application-specific integrated circuit, ASIC for short), a
programmable logic device (English: programmable logic device, PLD
for short), or a combination thereof. The PLD may be a complex
programmable logic device (English: complex programmable logic
device, CPLD for short), a field programmable gate array (English:
field-programmable gate array, FPGA for short), a generic array
logic (English: generic array logic, GAL for short), or any
combination thereof. The memory may include a volatile memory
(English: volatile memory) such as a random access memory (English:
random access memory, RAM for short); or the memory may include a
non-volatile memory (English: non-volatile memory) such as a
read-only memory (English: read-only memory, ROM for short), a
flash memory (English: flash memory), a hard disk drive (English:
hard disk drive, HDD for short), or a solid-state drive (English:
solid-state drive, SSD for short); or the memory may further
include a combination of the foregoing types of memories.
FIG. 7 and FIG. 9 may further include a bus interface. The bus
interface may include any quantity of interconnected buses and
bridges. Specifically, one or more processors represented by the
processor and various memory circuits represented by the memory are
linked together. The bus interface may further link together
various other circuits such as a peripheral device, a voltage
regulator, and a power management circuit. This is known in the
art, and therefore is not further described in this specification.
The bus interface provides an interface.
All or some of the foregoing embodiments may be implemented by
using software, hardware, firmware, or any combination thereof.
When software is used to implement the embodiments, all or some of
the embodiments may be implemented in a form of a computer program
product. The computer program product includes one or more computer
instructions. When the computer program instructions are loaded and
executed on a computer, all or some of the procedures or functions
according to the embodiments of the present invention are
generated. The computer may be a general-purpose computer, a
dedicated computer, a computer network, or other programmable
apparatuses. The computer instructions may be stored in a computer
readable storage medium or may be transmitted from a computer
readable storage medium to another computer readable storage
medium. For example, the computer instructions may be transmitted
from a website, computer, server, or data center to another
website, computer, server, or data center in a wired (for example,
a coaxial cable, an optical fiber, or a digital subscriber line
(DSL)) or wireless (for example, infrared, radio, or microwave)
manner. The computer readable storage medium may be any usable
medium accessible to a computer, or a data storage device, such as
a server or a data center, integrating one or more usable media.
The usable medium may be a magnetic medium (for example, a floppy
disk, a hard disk, or a magnetic tape), an optical medium (for
example, DVD), a semiconductor medium (for example, a solid state
disk Solid State Disk (SSD)), or the like.
Obviously, a person skilled in the art can make various
modifications and variations to this application without departing
from the scope of this application. This application is intended to
cover these modifications and variations provided that they fall
within the scope of protection defined by the following claims.
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